Check Valves

HedFlex Duckbill check valves are a cost-effective way to control back pressure. They are fully passive backflow devices requiring no maintenance, no external sources of power and no manual assistance to operate. HedFlex products are offered as direct replacements for ineffective flap type check valves, which are commonly known to seize, rust and bind in unwanted positions, and can handle large obstructions without jamming or having swing gates binding open.